TRAPPIST-1 - System
Simulates TRAPPIST-1, seven Earth-sized worlds in a resonant chain around an ultracool dwarf. Several orbit in the habitable zone, closer in than Mercury.
Exoplanets
TRAPPIST-1, the only seven-planet system in the catalog: an ultra-compact resonant chain of Earth-sized worlds around an ultracool dwarf, where neighboring planets tug continuously on one another.